- Z-up model rotated for the Y-up viewer; start view is the longitudinal (종단) view, chainage left to right
- 구간 보기: two-handle station slider (start/end) with 구간 맞춤 / 구간 전체
- click a part: yellow highlight + tooltip (group, pattern, station range, length, volume, part ID)
- 선택 맞춤 (zoom fit), 선택 해제 (Esc), 선택 숨기기, 선택만 보기, 모두 보기, 와이어프레임
- full-length reference lines shown only for the full range
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A5Cun3RHQKna9qxE6ybZ4A